![]() August 9 Waning Crescent 37% |
![]() August 10 Waning Crescent 28% |
![]() Waning Crescent Illumination: 19% |
![]() August 12 Waning Crescent 12% |
![]() August 13 Waning Crescent 7% |
On this day the Moon was in a Waning Crescent phase. This phase is best viewed just before the sunrise in the western sky. In this phase the Moon’s illumination is growing smaller each day until the New Moon. During this part of the Moon cycle, the Moon is getting closer to the Sun as viewed from Earth and the night side of the Moon is facing the Earth with only a small edge of the Moon being illuminated. It can also be a great time to see the features of the Moon's surface. Along the edge where the illuminated portion meets the dark side, the craters and mountains cast long shadows making them easier to observe with a telescope or binoculars.
Visit the August 2023 Moon Phases Calendar to see all the daily moon phase for this month.
The Waning Crescent on August 11 has an illumination of 19%. This is the percentage of the Moon illuminated by the Sun. The illumination is constantly changing and can vary up to 10% a day. On August 11 the Moon is 25.24 days old. This refers to how many days it has been since the last New Moon. It takes 29.53 days for the Moon to orbit the Earth and go through the lunar cycle of all 8 Moon phases.